665820

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{137}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 2109744

約数和(自身を除く): 1443924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 137, 162, 180, 243, 270, 274, 324, 405, 411, 486, 540, 548, 685, 810, 822, 972, 1215, 1233, 1370, 1620, 1644, 2055, 2430, 2466, 2740, 3699, 4110, 4860, 4932, 6165, 7398, 8220, 11097, 12330, 14796, 18495, 22194, 24660, 33291, 36990, 44388, 55485, 66582, 73980, 110970, 133164, 166455, 221940, 332910, 665820]

約数ペア:

[(1, 665820), (2, 332910), (3, 221940), (4, 166455), (5, 133164), (6, 110970), (9, 73980), (10, 66582), (12, 55485), (15, 44388), (18, 36990), (20, 33291), (27, 24660), (30, 22194), (36, 18495), (45, 14796), (54, 12330), (60, 11097), (81, 8220), (90, 7398), (108, 6165), (135, 4932), (137, 4860), (162, 4110), (180, 3699), (243, 2740), (270, 2466), (274, 2430), (324, 2055), (405, 1644), (411, 1620), (486, 1370), (540, 1233), (548, 1215), (685, 972), (810, 822)]